01
Calculations you can defend
Embedded logic that updates as fields are completed, with conditional formulas and lookup tables under version control.
Build · Form and Calculation App Development
A spreadsheet nobody can audit is a liability.
A premium, an estimate, a compliance check: one wrong cell and the number is indefensible.
Overview
Critical maths trapped in a spreadsheet is fragile, opaque and impossible to defend in an audit. We replace it with form and calculation applications where the logic is version-controlled, the inputs are validated and every result is traceable. The number is provably correct, or the form will not let you submit it.
What it includes
The work, named plainly.
02
Errors caught at the keystroke
Field and cross-field validation that stops bad input before it submits, with guidance instead of a silent wrong answer.
03
Routing by outcome
Submissions directed to the right reviewer or system based on the calculated result, threshold or value.
04
Every change, on the record
Timestamped logs of every input and calculation, for compliance and for settling a dispute later.
How we work
Engineered once. Maintained indefinitely.
- 01 Reverse-engineer the spreadsheets and capture every formula and edge case.
- 02 Set validation rules and acceptable ranges with the people who own the maths.
- 03 Build a deterministic, testable engine, separate from the interface.
- 04 Build the form with progressive disclosure, auto-save and responsive layout.
- 05 Prove accuracy against known cases and historical data before deployment.
- 06 Deploy with audit logging on and train the people who use it.
Speak with us
Tell us which calculation cannot be wrong.
We reply within one working day, from an engineer, not a pipeline.
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